What is Numpy ?

NumPy (Numerical Python) is a powerful Python library used for numerical and scientific computing.

It provides support for:

  • large multi-dimensional arrays

  • mathematical operations on arrays

  • high-performance computations

NumPy is the foundation library for data science, machine learning, and scientific computing in Python.


Why do we need Numpy ?

Python’s built-in data structures like lists are flexible, but they are:

  • slower for numerical operations

  • memory inefficient

  • not optimized for mathematical computations

NumPy solves these problems by providing optimized array operations written in C, making it much faster.


Key Features of Numpy :

  • Fast execution
  • Multi-dimensional array object (ndarray)
  • Vectorized operations
  • Mathematical & statistical functions
  • Broadcasting support
  • Memory efficient

Installing Numpy :

Bash/Shell 
pip install numpy


Importing Numpy :

Python 
import numpy as np